Modified package published to npm, containing malware that exfiltrates private key material

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

8.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N · score source

EPSS

• CVE-2024-54134: 0.54% estimated exploitation activity in the next 30 days; percentile 45.67 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Earlier today, a publish-access account was compromised for @solana/web3.js, a JavaScript library that is commonly used by Solana dapps. This allowed an attacker to publish unauthorized and malicious packages that were modified, allowing them to steal private key material and drain funds from dapps, like bots, that handle private keys directly. This issue should not affect non-custodial wallets, as they generally do not expose private keys during transactions. This is not an issue with the Solana protocol itself, but with a specific JavaScript client library and only appears to affect projects that directly handle private keys and that updated within the window of 3:20pm UTC and 8:25pm UTC on Tuesday, December 3, 2024. These two unauthorized versions (1.95.6 and 1.95.7) were caught within hours and have since been unpublished. We are asking all Solana app developers to upgrade to version 1.95.8. Developers pinned to latest should also upgrade to 1.95.8. Developers that suspect they…

Published by the source

4 Dec 2024, 18:09 UTC

Last modified by the source

3 Feb 2026, 03:09 UTC

Source last checked

26 Oct 2026, 12:41 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-jcxm-7wvp-g6p5

2. Revision 2 · amended · 24 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-jcxm-7wvp-g6p5

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# Patch Next advisory brief: CVE-2024-54134

Advisory: Modified package published to npm, containing malware that exfiltrates private key material
IDs: CVE-2024-54134, GHSA-jcxm-7wvp-g6p5
Record: https://patchnext.com/advisories/cve-2024-54134 (revision 3, source checked 26 Oct 2026, 12:41 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: @solana/web3.js 1.95.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm @solana/web3.js: affected >= 1.95.6, < 1.95.8; fixed in 1.95.8

## Suggested inspection (read-only)
- `npm ls @solana/web3.js --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on @solana/web3.js.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-jcxm-7wvp-g6p5 (OSV record GHSA-jcxm-7wvp-g6p5 lists affected ranges: npm @solana/web3.js >=1.95.6 <1.95.8 (fixed))
- Verified: https://github.com/advisories/GHSA-jcxm-7wvp-g6p5 (GitHub-reviewed advisory GHSA-jcxm-7wvp-g6p5 lists affected ranges: npm @solana/web3.js >=1.95.6 <1.95.8)

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